Don't lose your RefWorks citations!
You've worked too hard building your database of citations to let them all disappear when you graduate. So don't let them. Create an alumni account and move all of your citations over to it before you graduate.
Importing references from the databases is easy, but slightly different for each. Take a look at this cheatsheet to learn how.
Importing references from PubMed is particularly tricky. Watch this video to learn how.